humans melee or energy

Martial artists

I would say swordsmen is more suited for pvp, fighter is well rounded for both PvE and PvP

It depends on what you like most.

Both the Martial Artist and the Spiritualist are good, if you want to have a character just for farming make yourself a Turtle Hermit (if you choose a Spiritualist) or a Fighter (if you opt for a Martial Artist).

If you want to always play PvP the most recommended is a Martial Artist and you can do the Sub-class mission and choose Fighter or Swordsman, both are too good in PvP, by the Spiritualist the Crane Hermit is also good for PvP for its incredible damage (if you arm it well) from a distance and is able to put in a bad situation a Fighter or a Swordsman with his paralysis, speed reduction, sleep and all his attacks of bleeding, poison and others.

For me the best kind of human can be Spiritualist and the sub-class can be Crane Hermit.